
using System;
using System.Linq;
using System.Reflection;
//
// DotNetNuke - http://www.dotnetnuke.com
// Copyright (c) 2002-2010
// by DotNetNuke Corporation
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated 
// documentation files (the "Software"), to deal in the Software without restriction, including without limitation 
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and 
// to permit persons to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or substantial portions 
// of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED 
// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
// CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
// DEALINGS IN THE SOFTWARE.
//

using System.Web.UI;

namespace DotNetNuke.Web.Mvp
{

	public class AttributeBasedViewStateSerializer
	{

		private const BindingFlags MemberBindingFlags = BindingFlags.Instance | BindingFlags.Public;
		public static void DeSerialize(object value, StateBag state)
		{
			Type typ = value.GetType();

			//Parse all the Public instance properties
			foreach (PropertyInfo member in typ.GetProperties(MemberBindingFlags)) {
				//Determine if they are attributed with a ViewState Attribute
				ViewStateAttribute attr = member.GetCustomAttributes(typeof(ViewStateAttribute), true).OfType<ViewStateAttribute>().FirstOrDefault();
				if ((attr != null)) {
					//Get object from ViewState bag
					string viewStateKey = attr.ViewStateKey;
					if (string.IsNullOrEmpty(viewStateKey)) {
						//Use class member's name for Key
						viewStateKey = member.Name;
					}

					member.SetValue(value, state[viewStateKey], null);
				}
			}
		}

		public static void Serialize(object value, StateBag state)
		{
			Type typ = value.GetType();

			//Parse all the Public instance properties
			foreach (PropertyInfo member in typ.GetProperties(MemberBindingFlags)) {
				//Determine if they are attributed with a ViewState Attribute
				ViewStateAttribute attr = member.GetCustomAttributes(typeof(ViewStateAttribute), true).OfType<ViewStateAttribute>().FirstOrDefault();
				if ((attr != null)) {
					//Add property to ViewState bag
					string viewStateKey = attr.ViewStateKey;
					if (string.IsNullOrEmpty(viewStateKey)) {
						//Use class member's name for Key
						viewStateKey = member.Name;

					}

					state[viewStateKey] = member.GetValue(value, null);
				}
			}
		}

	}
}
